MI = lambda :(map(int,input().split()))
x = int(input())
if x>1799:
	print(1)
elif x>1599:
	print(2)
elif x>1399:
	print(3)
elif x>1199:
	print(4)
elif x>999:
	print(5)
elif x>799:
	print(6)
elif x>599:
	print(7)
else:
	print(8) MI = lambda :(map(int,input().split())) MI lambda :(map(int,input().split())) map(int,input().split()) map int input().split() ().split () input split x = int(input()) x int(input()) int input() input if x>1799:
	print(1)
elif x>1599:
	print(2)
elif x>1399:
	print(3)
elif x>1199:
	print(4)
elif x>999:
	print(5)
elif x>799:
	print(6)
elif x>599:
	print(7)
else:
	print(8) x>1799 x 1799 print(1) print 1 elif x>1599:
	print(2) x>1599 x 1599 print(2) print 2 elif x>1399:
	print(3) x>1399 x 1399 print(3) print 3 elif x>1199:
	print(4) x>1199 x 1199 print(4) print 4 elif x>999:
	print(5) x>999 x 999 print(5) print 5 elif x>799:
	print(6) x>799 x 799 print(6) print 6 elif x>599:
	print(7) x>599 x 599 print(7) print 7 print(8) print 8 x = int(input()) int(input()) x MI = lambda :(map(int,input().split())) lambda :(map(int,input().split())) MI
MI = lambda :(map(int,input().split()))
x = int(input())
if x>1799:
	print(1)
elif x>1599:
	print(2)
elif x>1399:
	print(3)
elif x>1199:
	print(4)
elif x>999:
	print(5)
elif x>799:
	print(6)
elif x>599:
	print(7)
else:
	print(8)